Yoga & Gym Onesia Pants Wear UK | Next Day Delivery

Jumpsuits

Our Pilates jumpsuits sre designed with comfort and careful craftsmanship in mind. It is made of high-quality fabric, ensuring maximum breathability, durability, and flexibility. This jumper will help you take your Pilates practice to the next level.

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

Elevate Your Style with Fresh Arrivals from Our Just Landed Collection!

Flared unitard

Sold out

Flared unitard

$213.27 NZD

Sold out

Clearance Sale

End of season clearance SALE Please note products are not refundable but...

Clearance Sale

THE REQUIREMENTS Be an Instructor or Influencer. Put Your Ambassador Status in Your IG Bio. Post 2x Per Month.

Apply now

Let customers speak for us

from 285 reviews

Gorgeous soft pink

Obsessed with this sports bra love all colours but soft pink is like eating marshmallows.

Angela B

11/21/2025

Flowline sports bra

Burgundy set

So pleased with this set. The perfect colour for autumn/winter. Beautiful burgundy colour. Can't wait to wear it.

Channelle Myers

11/10/2025

Pilates leggings set

Leggings

First purchase from Belsize of leggings for Pilates. Great fit and so pleased with quality. Will definitely purchase again and recommend.

Lynne Smith

10/27/2025

Dusty pink leggings

So beautiful to move in

I love this jumpsuit so much. It feels like a second skin when on. The colour is beautiful, too. I especially loved the scallop-crossed back. It's a definite must-buy in any colour.

Channelle Myers

10/17/2025

Scalloped jumpsuit

Beautiful unique set

Don’t hesitate to buy. Beautiful sets. Sculpt the body nicely. Love them.

Channelle Myers

09/19/2025

Scallop cross back matching set

As a yoga teacher, I wash my activewear every single day. This is the only bra that hasn’t lost its color or shape absolutely amazing

Courtney

09/17/2025

White sports bra

Great support

Top of excellent quality leggings are like second skin

A****ra

09/17/2025

Pilates leggings set

Second skin

Like a second skin probably the most comfortable leggings

Ana

09/17/2025

Pilates leggings set

Stunning

Beautiful colour perfect fit. I wish I knew earlier for Belsize. Best price

Jordan

09/17/2025

Flared leggings and sports bra set

My second colour

Bought fist set in brown colour it hold my tummy extremely well, absolutely love coral 🪸 colour. Temptation for the black set 👀

Jady

09/17/2025

Autumn Shades You’ll Live In

The best gym set

I first bought only pocket leggings after wearing them daily they are still the same. I have treated my self with full set. Very good quality

Tamara

09/17/2025

Pocket leggings & sports bra

Absolutely amazing

Love the fabric but finally pockets that hold my phone. Very comfortable. I wish they have in more colours.

Tamara

09/17/2025

Pocket leggings

Unbelievable love it

After giving birth, I honestly thought I’d never feel confident in leggings again but this Scallop Set holds my mummy tummy in beautifully! 💖 The quality is amazing, and the sports bra gives strong support even though it’s a one shoulder design. I’ve already ordered another colour before it sells out again!

Stacey

09/09/2025

Scallop pilates set

Wearing it every day, everywhere! Obsessed

I paired it with the pink padded top and honestly felt like a total tennis babe! The fit is super flattering, not too short, and moves perfectly on the court. The fabric is soft but supportive, I’ve worn it for both tennis and running it’s that cute. Definitely a must-have set! 🎾💗 We’ll done Belsize

Harper.S

06/08/2025

Women’s Padel and Tennis Skirts – Stylish Skorts for Tennis & Picklebal

Gorgeous set

I have the black and aubergine and I love them both and love to interchange the tops and bottoms.

Laura

05/23/2025

Scallop pilates set

Item added to your cart

Collection: Jumpsuits

Bali jumpsuit yoga and pilates

Bali jumpsuit yoga and pilates

Scalloped jumpsuit

Scalloped jumpsuit

Pilates jumpsuit green sage

Pilates jumpsuit green sage

Black unitard jumpsuit

Black unitard jumpsuit

The Muse jumpsuit

The Muse jumpsuit

Define Jumpsuit

Define Jumpsuit

Flared jumpsuit

Flared jumpsuit

Flared jumpsuit unitard

Flared jumpsuit unitard

Zero feel set

Elevate Your Style with Fresh Arrivals from Our Just Landed Collection!

Flared unitard

Flared unitard

Clearance Sale

Clearance Sale

Ambassador programme

Let customers speak for us

Country/region

Country/region

Collection: Jumpsuits

Filter and sort

Filter

Zero feel set

Elevate Your Style with Fresh Arrivals from Our Just Landed Collection!

Ambassador programme

Let customers speak for us

Never miss new deals